Foreign body forceps for digestive endoscopy

Abstract

The invention relates to a pair of foreign body forceps for a digestive endoscopy, and relates to the technical field of digestive endoscopes, the pair of foreign body forceps comprises a clamping mechanism, a driving mechanism and a protection tube, the clamping mechanism comprises two clamping pieces, and the two clamping pieces are hinged through a connecting shaft; a connecting seat is fixedly connected between the two connecting arms, a sliding groove is formed in the side, close to the driving shaft, of the connecting seat, the sliding block is located in the sliding groove, a positioning seat is arranged at an opening of the sliding groove and is in threaded connection with the connecting seat, and the driving rod penetrates through the positioning seat. A reset spring is arranged between the positioning base and the sliding block. The positioning seat can be driven to move in the length direction of the sliding groove by rotating the positioning seat, then the distance between the positioning seat and the inner bottom wall of the sliding groove is adjusted, the deformation quantity of the reset spring is adjusted when the foreign matter is clamped, the elastic acting force of the reset spring is changed, the grabbing force of the clamping mechanism is changed accordingly, and the clamping device can be suitable for different foreign matter conditions and is wide in application range.

Description

technical field [0001] The invention relates to the field of digestive endoscopy, in particular to a foreign body forceps for digestive endoscopy. Background technique [0002] Gastrointestinal endoscopy mainly diagnoses diseases of the esophagus, stomach, intestines, biliary tract and other parts through endoscopy. At the same time of diagnosis, more professional endoscopy is used to treat digestive tract diseases. Foreign bodies in the upper gastrointestinal tract are one of the common clinical emergencies. The types of foreign bodies include fish bones, jujube cores, and poultry bones. Such foreign bodies can easily damage the mucosa and blood vessels, leading to complications such as bleeding and perforation. Emergency endoscopic treatment should be performed. [0003] Foreign body forceps are commonly used medical instruments in digestive endoscopy, mainly used to assist doctors to remove foreign bodies from the digestive organs of patients. Existing foreign body force...

AI Technical Summary

Problems solved by technology

[0005] For the second clamping method, there are still the following disadvantages: the gripping force of the gripping mechanism depends on the elastic force of the spring. For foreign objects with large volume or smooth surface, if the gripping force is larger If the grip is too small, the clamping will not be reliable; for some fragile foreign objects, if the gripping force is too large, it will be easily crushed, leaving residue, which is difficult to remove completely

Therefore, for some cases, it is necessary to use the first clamping method to artificially control the grasping force. It can be seen that the second clamping method has limitations.

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